Machine for manufacturing double-faced corrugated board.



E. RAFPEL.

JTURING KPP'LJOA MACHINE FOE MANUI-Ai DOUBLE FACED CORRUGATED BOARD mow FILED $53.2, 1.135129%.

Patented J an. 1.4, 1913.

'Httorney.

cf the city of New York,

rugated corrugated face do roams n. nsrrnn, or

NEW YORK, N. Y., ASSIGNOR TO PAPER- WORKING MACHINES (30., A CORPORATION OF NE? YORK.

- "'IY IAC HINE FOR MANUFACTURING DOUBLE-FACE!) CORRUGATED BOARD.

Specification of Letters Zatent.

Patented Jan. 14,1913.

Application'filed February 2, 1912. Serial No. 674,976.

To (ill whom it may concekm:

Be it known that I, Tomas E. RAFFEL, a citizen of the United States, and a resident of New York, have invented certain new and useful Improvements in Machines for Manufacturing Double-Faced Corrugated Board, of which the following is a full, clear, and exact specification.

y invention relates particularly to a machinev for manufacturingdouble-faced corrugated-board by ap lying a web of plain facing paper to a we o'fgcorrugated paper that "has been previously faced on one side, thereby constructing a of" two plane surfaces having an intermediate corrugated web. v

f The object of my invention is to provide a ,machine of novel construction and arrangement of parts for manufacturing corpaper board in continuous lengths,

into sheets of deautomatically cutting it the severed sheets sired size and delivering from the machine. I

In carrying out my invention, a web of single faced corrugated paper having its WIlWfi'ld' 'lS carried over a heated surface which subjects the web to a preliminary drying so. as L O remove such moisture as may be contained therein, after whichpaste is applied to the corrugations and the web is fed or drawn into the ma chine simultaneously and juxtaposition with a web of plain facing paper. In transit through the machine the paper passes over a stationary drying table which thoroughly dries it, while at the samettime, pressure is being applied-thereon by inne of a plurality of movable ironing plates secured to an endless carrier, so as to firmly unite the webs into a stiff composite board.

An important feature of my invention consists in having these movable plates arranged to slide on'the surface of the composite web at a slower rate of speed than that at which the web travels, thereby creating a dragging or ironing effect which tends to smooth its surfaces and to remove any air bubbles which may be held therein so as to prevent blistering of the surface or imperfect adhesionof the parts. As the board leaves the machine it passes beneath a cutting knife on to a delivery table on county and State flat board consisting.

. from a supply or other suitable source which it is automatically cut into any desired length and livered from the machine.

In theaccompanying drawings illustrating my invention, Figure l is a side elevation showing the arrangement of the arts of my improved machine. Fig. 2 is a etail elevation of the cutter actuating cam. Fig. 3

sheets of automatically deis a detailed elevation of a heater plate.

Fig. 4 is a front elevation of the knife. Fi 5 is a top plan view of the delivery be Fig. 6 is an end elevation of the same. Fig. 7 is a top plan view of a section of the drying table showing the movable ironing plates in position above the table. Fig. 8 is a section in elevation through the cutter controlling clutch. Fig. 9 is a detail elevation of the friction disk. Fig. 10 is an end elevation of the feeding mechanism clutch, and Fig. 11 is a side elevation partly in section of the same.

'Referring to the drawings 1) represents a suitable supply roll carrying a web (2) of single faced corrugated paper which is arranged to be drawn, with its unfaced surface downward, over one or more heated plates (3) so as to thoroughl dry the-web before applying a coat of a hesive to the corrugations thereof by means of a paste roll (4.) rotating in a suitable paste receptacle (5). A pair of feed rolls (6) draws the web (2) and progresses it through the machine simultaneously and in juxtaposition with a facing web (7) which is drawn roll (8) and passes over an idler (9). The feed rolls maybe adjustably mounted, in the usual manner, on the frame of the machine (not shown). so that the pressure exerted on the webs can be regulated as desired. The pressure of the feed rolls on the webs will cause the facingweb to adhere to the pasted unfaced surface of the other web and thereby form a composite web. This composite web is progressed over a drying table which serves to evaporate all of the moisture from the web and thpreby stiffen it so as to convert it into a rigid double faced corrugated board. The drying table consists of a lurality of contiguously disposed heater p ates (10) whose upper surfaces are flatand smooth and ar: arranged to bc heated by means of live steam, of heat, cir ulating throiigh a continuous line of piping (1 1) which is carried transversely .under each plate. I

In order to firmly unite the coznponeut webs of the board and to smooth its surfaces while it is being dried, I provide a plurality of ironing pletes disposed above the drying table and mounted for movement on the upper surface of the board in the direction of travel thereof, but at. a. relatively slower rate of speed. The ironing plates or slats (12) have flat smooth faces and are fastened, transversely of the drying table to an endless carrier (13). The carrier is supported on a pair of sprockets (14) one at each end of the drying table, and it travels over an adjustable idler (15) which is adapted to regulate the tension thbreof. The sprockets (14) are mounted relatively to the drying table in sue a manner that the plates or slats on the under side of the carrier will bear directly on the uppersurfece of the board. The mount ings ofthese sprockets may be made adjust: able to ermit of the carrier and its attached p ates'being raised from the board'- to give access thereto as occasion requlre. v 3i 7 The carrier sprockets are actuatedin any suitable manner preferably by mealiis of a belt extending fr In one of the feed rolls (6) so as to driv" the plates in the direction indicated by the arrows in Fig. l, but at a slower rate of speed than the'surfacc speed of the feed roll, or, in othe'r' words, at a slower rate of, speed than that 'at which the board travels. 'lt'will be observed that as, the movable plates 'bearr upon end are dragged over the upper surface of the board While it is traveling on the drying tsble, they will press or iron out till, of the air "bubbles and thus give the board an abso lutely smooth finish. After the board leaves.

:the drying table it is engaged between a pair, of auxiliary feed rolls (-16) thesun face of which may be covered with some flexible material to form a cushion and at the same timo grip the stock and assist in carrying it beyond the cutter (17) on to the delivery bed forming a purtof the innchine and located at the end theredf.

The delivery bed is arranged to support the board while it is being out and then to mit-oinatically delivertho'severed sheets from the machine. .To this end I provide a pair of parallel supports (18), spaced apart a. distance slightly less than the width of .the board, each of which carried. on the two adjustable arms ('10) mounted for cndt Wise movement in a frur-ne By a,d\ justing the position of the arms (19) the 1 distance between the supports (18), may be varied to accommodateiboards of different width.

Each of the movable arms (19) is pro-,.

pinions to rotate in opposite directions.

This may be accomplished by securing to the spindles the lever-arms (24), which are inclined toward each other as seen in Fig. 6, and are connected by means of ithe rods (25) to the rear ends of the rocker arms (26), the forward ends of which bear upon the (urns (27) fixed to the rotatable shaft. 528 nism. These earns (27) are arranged. to tilt the rocker arms (26) immediately after the movable cutter blade (29) has ,descended, and thereby cause the supports (.18) to separate, thusallowing the cut sheet to drop from the mncl'iine, hitter which the supports are returned to their original positlon. position of the cams (27) log hind the cam" (34.) which actua'tcsthe cuttenf The cutting mechanism comprises a staftionery blade (-17) and a vertically reciprocating blade (29) disposed transversely of the machine. I prefer to have the movable blade (29) formed with a double beveled edge as shown in Fig. t so thut in descend ing it will first. engage the board at its edges and out toward the center, thus holding the. board in position during the operation. The blade is secured to the rear end'of a pivoted beam (30), the forward end of which is reciprocntcd bye )ltnlflll (31) having a pin (32) which worl (33) formed. in the cam (34) fixedrto the rotatable shaft normally at rest and the rotation thereof is is in an eccentric groove of the cutter uot-ueting meelnii The shaft (28) is controlled by a suitable-friction clutch which is\ arranged to be. thrown by means of :1 tr gaping device automatically actuated by the edge of the board as it advances inthe machine. The friction clutch, as preferably construclcd, comprises a toothed flanged '(llSk (35) which is loosely carried on the shaft (28) and meshes with a inion (36) fastened to the main driving siaft of the machine. The disk (35) is held in surface contzic't with a friction-disk (37),. keyed to .the shaft (28), by means pf it vcoiled about the shaft and actingagainst a fixed collar (39). The friction disk (37) is normally held against rotation by the engagement of the projecting pin or stud (40 with the forward end of the rocker arm (41) of the tripping device. R will beseen that when the pin (40) is released, the friction disk (37) will be free to rotate with its compuniondriven disk (35). As the sltitfb (28) is fixed to the disk (37) itwlll elso'bo "housed to rotate, and through the earns (27)- spring (38) am? iiuiivury M and (3;. i.

if: nix-flame "ah Una in any suitabie manner as by mmns of the vimins 51ml geara lhlifiVIl in Fig. 1,

In 31H} fnwgning speei'ricaiion I have desnribeil the pre'i'eifreii fmrm :aml nmde of 0p Nation njl' my muvhimg but ii will. be apparhow :3 led in Uw art that various tium may he made in the arrangeruct-ion of the parts thereof Wifihnnt departing from the spirit and 5400;)? M" my invention 7 What i ifiarim is:

i. A machine for making doubly Hlfik'zi currugu iit ed paper board eizuriipm.v H means urzmged to PI'OQTUbS :1 angle fay-ii c0rru Web but at :1

V mver rate of speed, 3. A zimchww i 195- double. faved h-(i page? wrising means 3 M Hing-n I .(L (14111 in J'HXMPM- iii-gum for apply w th if the C(HI'Lh 'iEu'e, Mm which the :3: mph 5! member ii inezmrii my we and imiii iimi IHLWPUWDL 011. the well at, 21.

the

than

sum :2?

pi i. It A ixmchl Hi: the vimznchzr miii'i-iisiiig heater ,i'm drying Angie 5-1264 vi migrate i v. 0 means i'wi uppi v'ing Vi? to he L izuginiuna; n a n5 for ng paper in mm'iiict arm-'1; ii 

